Very distinctive "Fastigate Boxwood" quickly growing into an exceptionally narrow tall plant; the parent seedling has now reached some 20' yet is only 3' wide, resembling a broad-leaved fastigate Irish Yew. Perhaps the alternate name of 'National' reflects its selection from seedlings at the Blandy Experimental Farm (in Virginia) around 1936 and named by Lynn Batdorf.
Some of you grow only indoors, some only in terrariums; many of you have hobby greenhouses; while a growing number of customers live in subtropical or tropical areas of the world. These brief codes are an attempt to suggest whether or not a particular plant will do well in your particular conditions.
If an entry has the cluster HP CGH, this means normal house plant culture will be successful if the plant is given a cool CGH moist location; however if the entry has the cluster CGH HP, you would interpret this to suggest that while Cool Greenhouse conditions are needed for total success with this plant, House Plant conditions will be adequate, while not ideal. If the cluster is HH CGH you would interpret this to mean that while in Zone 8 or below this will be winter hardy outdoor, further north it will need considerable mulch, a cold frame, or a Cool Greenhouse to thrive. And so on.×